
\begin{tikzpicture}[nodes={anchor=west, inner sep=0}]
	\node [] (i) {(i , )}; 
	\node [right=2em of i] (char) {该\color{blue}标识符\color{black}符号表项};
	
	\draw[->, thick]([xshift=-0.5em,yshift=0em]i.east) -- ([xshift=-0.5em,yshift=0em]char.west);	 
\begin{pgfonlayer}{background}
{
	\node [minimum width=11em,align=left,fill=red!20] [fit = (i) (char)] (box) {};
}
\end{pgfonlayer}	
\end{tikzpicture}